400890
cis-2-Butene
≥99%
Synonym(s):
(2Z)-2-Butene, (Z)-2-Butene, Z-Butene, cis-1,2-Dimethylethylene, cis-2-Butylene
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About This Item
Linear Formula:
CH3CH=CHCH3
CAS Number:
Molecular Weight:
56.11
Beilstein:
1361341
EC Number:
MDL number:
UNSPSC Code:
12142100
PubChem Substance ID:
NACRES:
NA.22
vapor density
2 (vs air)
Quality Level
vapor pressure
1414 mmHg ( 21 °C)
Assay
≥99%
form
gas
autoignition temp.
615 °F
expl. lim.
9.7 %
bp
3.7 °C (lit.)
mp
−139 °C (lit.)
SMILES string
[H]\C(C)=C(/[H])C
InChI
1S/C4H8/c1-3-4-2/h3-4H,1-2H3/b4-3-
InChI key
IAQRGUVFOMOMEM-ARJAWSKDSA-N
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Application
cis-2-Butene is an unsaturated olefinic hydrocarbon used as a precursor in the polymerization of gasoline. It is also used to synthesize butadiene and other aliphatic C4/C5 organic molecules. It is also employed as a cross-linking agent.
Packaging
Supplied in a Sure/Pac™ cylinder and has a brass needle valve with a male 1/4" NPTF outlet thread installed. Before using the cylinder, ensure that the valve is closed, then remove the galvanized steel hex cap that seals the outlet valve.
Compatible with the following:
Compatible with the following:
Legal Information
Aldrich is a registered trademark of Sigma-Aldrich Co. LLC
Sure/Pac is a trademark of Sigma-Aldrich Co. LLC
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Flam. Gas 1 - Press. Gas Liquefied gas
Storage Class Code
2A - Gases
WGK
WGK 3
Flash Point(F)
10.4 °F - closed cup
Flash Point(C)
-12 °C - closed cup
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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